不确定

An air of uncertaintyand impending difficulty surrounds the system and those associated with it...

不确定 的氛围和迫近的困难环绕这系统和与之有关的人。

An air of uncertai nty and impending difficulty s urrounds the system and those associated with it...

不确定 的氛围和迫近的困难环绕这系统和与之有关的人。

However, from other countries in the world through the way of view, this assumption is very uncertain.

然而，从世界其他国家通过的方式来看，这种假设是非常不确定的。

Instead of saying,"I'm not sure I could accumulate amillion dollars," instead, ask yourself the assumptive

假如你怀疑任何事情，怀疑你的局限，那你应该换掉原先的那句话"偶不确定偶能否攒到一百万美金"。

A valve-controlled asymmetric cylinder system has many factors of nonlinearity and uncertainty,whose influence on the stability of the system is complicated.

阀控非对称缸系统存在着大量的非线性和不确定因素，这些因素对系统稳定性的影响非常复杂。

The nonlinear plant is first linearised, the fuzzy basis function vector is then introduced to adaptively learn the upper bound of the system uncertainty vector,and its output is used as the parameters of the compansator in the sense that both the robustness and the asymptotic error convergence can be obtained for the closed loop nonlinear control system.

在该方法中，首先将非线性系统线性化，然后利用模糊基函数向量自适应学习系统不确定向量的上界，模糊基函数向量可作为补偿控制器的一个参数。在控制系统的设计过程中可充分保证非线性控制系统的鲁棒性和跟踪误差的渐进收敛性。

The second order asymptotic formulation for reliability analysis of parallel systems is employed in calculating the fatigue failure probability of the failure path of the system.

由于结构系统的疲劳破坏是一个受到大量不确定因素影响的现象，因此运用结构可靠性分析的基本理论和方法，对结构系统进行疲劳可靠性分析十分必要。

Simulation results are presented to illustrate that the method presented in the paper is feasible and asymptotic stability of the closed system is ensured.

仿真结果表明该方法是可行的，有效地防止了系统的颤振和不确定因素的影响。

The key idea is to reduce the global stability problem to the asymptotic stability of an uncertain discrete-time system.

主要思想是将所研究的极限环的全局稳定性问题转化为不确定离散系统的渐近稳定性问题。

The problem of robustly asymptotic stability for a class of switched uncertain descriptor systems with time-delay is considered.

摘要研究了一类带有时滞的切换不确定广义系统的鲁棒渐近稳定问题。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。